Wind
Humidity
Boundary is a hydroelectric dam located in Pend Oreille, Washington, along the banks of the Pend Oreille River.
Constructed in 1967, this concrete dam stands at a height of 340 feet and serves multiple purposes including hydroelectric power generation and recreation. The dam has a storage capacity of 95,000 acre-feet, a drainage area of 25,200 square miles, and a maximum discharge of 360,000 cubic feet per second.
Owned and regulated by the Federal Energy Regulatory Commission, Boundary is classified as having a high hazard potential and a very high risk assessment rating. The dam features a controlled spillway with a width of 100 feet and various outlet gates for water release. Despite its age, the condition assessment for Boundary is currently listed as "Not Available," and the last inspection was conducted in September 2020 with an inspection frequency of one year.
With its significant hydraulic height of 330 feet and structural height of 360 feet, Boundary Dam remains a crucial infrastructure for water resource management and renewable energy production in the region. Its location in the scenic Northport area offers opportunities for recreation while providing essential services for the surrounding communities. As discussions around climate change and water resource sustainability continue, monitoring and maintaining structures like Boundary will be vital to ensure the safety and efficiency of our water systems.
Outlet Creek Near Metaline Falls
|
19cfs |
Columbia River At International Boundary
|
114000cfs |
Pend Oreille River Below Box Canyon Near Ione
|
37500cfs |
Boundary Creek Nr Porthill Id
|
758cfs |
Kootenai River At Porthill Id
|
19400cfs |
Kettle River Near Laurier
|
7050cfs |
Year Completed |
1967 |
Dam Length |
740 |
Dam Height |
340 |
River Or Stream |
Pend Oreille River |
Primary Dam Type |
Concrete |
Surface Area |
1668 |
Hydraulic Height |
330 |
Drainage Area |
25200 |
Nid Storage |
95000 |
Structural Height |
360 |
Outlet Gates |
Bascule - 1, Slide (sluice gate) - 7, Tainter (radial) - 2 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
360 |
Ne1/4 Of Sec 13, T40N, R46E To Nw1/4 Of Sec 5, T40N, R46E
Segment 1 Is Classified As Wild And Flows From Its Source For Almost Five Miles To The Intersection With Trail 312 To Segment 1 Is Classified As Wild And Flows From Its Source For Almost To The Intersection With Trail 312
Segment 2 Flows For Almost 10 Miles From The Intersection With Trail 312 To Its Confluence With The Upper Priest River To Segment 2 Flows For Almost 10 Miles From The Intersection With Trail 312 To Its Confluence With The Upper Priest River
Upper Priest River
Long Canyon Pass, Sec. 30, T63N, R2W To Forest Boundary, Road #417, Sec. 25, T63N, R2W
Forest Boundary, Sec. 34, T59N, R2W To Harrison Lake, Sec. 31, T62N, R2W